城市环境中微尺度二氧化碳源和汇的空间建模:量化城市对全球变暖影响的新方法

IF 2.7 4区 环境科学与生态学 Q3 ENERGY & FUELS Greenhouse Gases: Science and Technology Pub Date : 2024-04-17 DOI:10.1002/ghg.2273
Loghman Khodakarami
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引用次数: 0

摘要

城市环境在全球碳排放和碳封存中扮演着重要角色,因此有必要对其空间分布进行全面了解。本研究提出了一个微尺度空间建模框架,以阐明城市环境中二氧化碳源和汇之间复杂的相互作用。利用先进的地理空间分析、遥感数据和地理加权回归(GWR)建模技术,我们提供了排放模式的详细特征,并确定了二氧化碳螯合的空间分布。利用自下而上的方法和地理信息系统技术,我们对伊朗伊斯法罕市的二氧化碳排放量进行了量化,其中 81.68% 来自固定燃烧源(住宅、商业、工业和发电厂部门),18.32% 来自移动燃烧源(公路-铁路运输和非公路运输[农业机械])。为了建立碳固存模型,我们使用异速方程计算了树木生物量,并估算了每棵树单位的碳固存。随后,我们利用 GWR 绘制了全市碳沉积的空间分布图。结果显示,每年的固碳能力为 7704 吨,相当于储存了 28275 吨二氧化碳。我们的研究结果凸显了城市地区对温室气体排放的巨大贡献,以及城市绿地减缓这些排放的潜力。本研究开发的空间建模框架为城市规划者优化碳管理策略、促进城市可持续发展提供了宝贵的工具。© 2024 化学工业协会和约翰-威利父子有限公司版权所有。
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Spatial modeling of micro-scale carbon dioxide sources and sinks in urban environments: A novel approach to quantify urban impacts on global warming

Urban environments play a significant role in global carbon emissions and sequestration, necessitating a comprehensive understanding of their spatial distribution. This study presents a micro-scale spatial modeling framework to elucidate the complex interplay between CO2 sources and sinks within urban settings. Utilizing advanced geospatial analysis, remote sensing data, and geographically weighted regression (GWR) modeling techniques, we provide a detailed characterization of emission patterns and identify the spatial distribution of carbon dioxide sequestration. Employing the bottom-up method and geographic information system techniques, we quantified carbon dioxide emissions in Isfahan City, Iran, attributing 81.68% to stationary combustion sources (residential, commercial, industrial, and power plant sectors) and 18.32% to mobile combustion sources (road-rail transportation, and non-road transportation [agricultural machinery]). To model carbon sequestration, we calculated tree biomass using allometric equations and estimated carbon sequestration per tree unit. Subsequently, we employed GWR to map the spatial distribution of carbon deposition across the city. The results revealed an annual carbon sequestration capacity of 7,704 tons, equivalent to storing 28,275 tons of CO2. Our findings highlight the substantial contribution of urban areas to greenhouse gas emissions and the potential of urban green spaces to mitigate these emissions. The spatial modeling framework developed in this study provides a valuable tool for urban planners to optimize carbon management strategies and promote sustainable urban development. © 2024 Society of Chemical Industry and John Wiley & Sons, Ltd.

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来源期刊
Greenhouse Gases: Science and Technology
Greenhouse Gases: Science and Technology ENERGY & FUELS-ENGINEERING, ENVIRONMENTAL
CiteScore
4.90
自引率
4.50%
发文量
55
审稿时长
3 months
期刊介绍: Greenhouse Gases: Science and Technology is a new online-only scientific journal dedicated to the management of greenhouse gases. The journal will focus on methods for carbon capture and storage (CCS), as well as utilization of carbon dioxide (CO2) as a feedstock for fuels and chemicals. GHG will also provide insight into strategies to mitigate emissions of other greenhouse gases. Significant advances will be explored in critical reviews, commentary articles and short communications of broad interest. In addition, the journal will offer analyses of relevant economic and political issues, industry developments and case studies. Greenhouse Gases: Science and Technology is an exciting new online-only journal published as a co-operative venture of the SCI (Society of Chemical Industry) and John Wiley & Sons, Ltd
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